70-410 is the first exam in the Server 2012 R2 MCSA (Microsoft Certified Systems Associate). This blog contains some material to help you prepare for the exam.
I am studying for this exam now, so most of the content is based on my notes.
The main book that I am using for this exam is Installing and Configuring Windows Server 2012 R2 Exam Ref 70-410 along with other documentation on Microsoft Technet.
They say one of the best ways to learn something really well, is to learn it, then see if you can teach it. So here it goes; hope it helps.